1. Associate Professor, School of Traffic and Transportation Engineering, Changsha Univ. of Science and Technology, Changsha 410114, China.
2. Master’s Student, School of Traffic and Transportation Engineering, Changsha Univ. of Science and Technology, Changsha 410114, China.
3. Doctoral Candidate, School of Traffic and Transportation Engineering, Changsha Univ. of Science and Technology, Changsha 410114, China (corresponding author).
4. Professor, School of Traffic and Transportation Engineering, Changsha Univ. of Science and Technology, Changsha 410114, China.
5. Undergraduate, School of Traffic and Transportation Engineering, Changsha Univ. of Science and Technology, Changsha 410114, China.